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<h1 class="entry-title">:checkbox Selector</h1>
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						所属分类：<span class="category"><a href="/category/selectors/">选择器</a> &gt; <a href="/category/selectors/form-selectors/">表单</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/selectors/">选择器</a> &gt; <a href="/category/selectors/jquery-selector-extensions/">jQuery 扩展</a></span>
<span class="pull-right">英文文档：<a href="https://api.jquery123.com/checkbox-selector/" target="_blank">:checkbox Selector</a></span>
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<article class="entry selector" id="checkbox1"><h2 class="section-title"><span>checkbox selector</span></h2>
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<p class="desc"><strong>描述: </strong>选择所有类型为复选框的元素。</p>
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<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>jQuery( ":checkbox" )</h4></li></ul>
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<p><code>$(':checkbox')</code> 等同于 <code>$('[type=checkbox]')</code>。如同其他伪类选择器（那些以“:”开始）建议前面加上一个标记名称或其他选择器;否则，默认使用通用选择("*")。换句话说<code>$(':checkbox')</code> 等同于 <code>$('*:checkbox')</code>，所以应该使用<code>$('input:checkbox')</code>来提升效率。</p>
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<h3>Additional Notes:(其他注意事项：)</h3>
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<li>
			  因为<code>:checkbox</code> 是一个 jQuery 延伸出来的选择器，并不是的CSS规范的一部分，使用<code>:checkbox</code> 查询不能充分利用原生DOM提供的<code>querySelectorAll()</code> 方法来提高性能。为了现代浏览器上获得更佳的性能，建议使用<code>[type="checkbox"]</code>代替.
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
<h4><span class="desc">查找所有复选框。</span></h4>
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<pre><div class="container"><div class="line"><code><span class="doctype">&lt;!DOCTYPE html&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">html</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">style</span>&gt;</span><span class="css"></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">textarea</span> <span class="rules">{ <span class="rule"><span class="attribute">height</span>:<span class="value"><span class="number">25</span>px;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">style</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>&gt;</span><span class="javascript"></span><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">form</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"button"</span> <span class="attribute">value</span>=<span class="value">"Input Button"</span>/&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"checkbox"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"checkbox"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"file"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"hidden"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"image"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"password"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"radio"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"reset"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"submit"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"text"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">select</span>&gt;</span><span class="tag">&lt;<span class="title">option</span>&gt;</span>Option<span class="tag">&lt;<span class="title">option</span>/&gt;</span><span class="tag">&lt;/<span class="title">select</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">textarea</span>&gt;</span><span class="tag">&lt;/<span class="title">textarea</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">button</span>&gt;</span>Button<span class="tag">&lt;/<span class="title">button</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">form</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">div</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">div</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">script</span>&gt;</span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="keyword">var</span> input = $(<span class="string">"form input:checkbox"</span>).wrap(<span class="string">'&lt;span&gt;&lt;/span&gt;'</span>).parent().css({background:<span class="string">"yellow"</span>, border:<span class="string">"3px red solid"</span>});</code></div></div><div class="container"><div class="line"><code>    $(<span class="string">"div"</span>).text(<span class="string">"For this type jQuery found "</span> + input.length + <span class="string">"."</span>)</code></div></div><div class="container"><div class="line"><code>            .css(<span class="string">"color"</span>, <span class="string">"red"</span>);</code></div></div><div class="container"><div class="line"><code>    $(<span class="string">"form"</span>).submit(<span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span> <span class="keyword">return</span> <span class="literal">false</span>; }); <span class="comment">// so it won't submit</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">html</span>&gt;</span></code></div></div></pre>
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<h4>Demo:</h4>
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